000 00405nam a2200133Ia 4500
008 180413s9999 xx 000 0 und d
020 _a0080286283 (Pbk)
100 _aKrashen Stephen D
245 0 _aPrinciples And Practice In Second Language Acquisition
260 _bOxford : Pergamon Press 1982.
300 _a202
546 _aEng
690 _aSecond Language ; Language Teaching ; Study ; Education.
999 _c20593
_d20593